I really like this memovox cal814, the serial 1022xxx dated 1954 which make the unsigned crowns look ok as i understood they starting singing the crown in late 50s. But i cannot see any case reference number, should it be on the case back? The cal number 814 is on the movement but doesnt say K814 or P814, i tried to match the watch with some k814 samples from Zaf's book but couldnt, the marking in the case back also has different format so i am not sure if this watch is correct and original, would really appreciate your opinion on the watch and a suggestion on the price range if possible.

Cheers
KO